/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.servlet;

import java.util.ResourceBundle;

/**
 * @since Servlet 3.0
 * TODO SERVLET3 - Add comments
 */
public class HttpMethodConstraintElement extends HttpConstraintElement {

	// Can't inherit from HttpConstraintElement as API does not allow it
	private static final String LSTRING_FILE = "javax.servlet.LocalStrings";
	private static final ResourceBundle lStrings =
			ResourceBundle.getBundle(LSTRING_FILE);

	private final String methodName;

	public HttpMethodConstraintElement(String methodName) {
		if (methodName == null || methodName.length() == 0) {
			throw new IllegalArgumentException(lStrings.getString(
					"httpMethodConstraintElement.invalidMethod"));
		}
		this.methodName = methodName;
	}

	public HttpMethodConstraintElement(String methodName,
	                                   HttpConstraintElement constraint) {
		super(constraint.getEmptyRoleSemantic(),
				constraint.getTransportGuarantee(),
				constraint.getRolesAllowed());
		if (methodName == null || methodName.length() == 0) {
			throw new IllegalArgumentException(lStrings.getString(
					"httpMethodConstraintElement.invalidMethod"));
		}
		this.methodName = methodName;
	}

	public String getMethodName() {
		return methodName;
	}
}